交代环境： AIX7.1 + 双节点Oracle Rac 11.2.0.3
由于此套Rac并非自己部门安装，是开发部安装，现交由运维部分来管理，客户需要要将asm diskgroup name 安装部门规范来命令。遂需要将oasmdgdata1更改为datadg。 幸好Oracle的版本是11gR2，在11gR2中，Oracle有一项新特性，可以直接使用renamedg命令更改diskgroup的名称。 下面是具体的操作步骤。
grid@sundb01:/home/grid>asmcmd ASMCMD> lsdg State Type Rebal Sector Block AU Total_MB Free_MB Req_mir_free_MB Usable_file_MB Offline_disks Voting_files Name MOUNTED NORMAL N 512 4096 1048576 358400 358192 0 179096 0 N OASMDGDATA01/ MOUNTED NORMAL N 512 4096 1048576 15360 14434 5120 4657 0 Y OCRDG/ ASMCMD> umount oasmdgdata01 ASMCMD> lsdg State Type Rebal Sector Block AU Total_MB Free_MB Req_mir_free_MB Usable_file_MB Offline_disks Voting_files Name MOUNTED NORMAL N 512 4096 1048576 15360 14434 5120 4657 0 Y OCRDG/
grid@sundb01:/home/grid>renamedg -help NOTE: No asm libraries found in the system
Parsing parameters.. phase Phase to execute, (phase=ONE|TWO|BOTH), default BOTH
dgname Diskgroup to be renamed
newdgname New name for the diskgroup
config intermediate config file
check just check-do not perform actual operation, (check=TRUE/FALSE), default FALSE
confirm confirm before committing changes to disks, (confirm=TRUE/FALSE), default FALSE
clean ignore errors, (clean=TRUE/FALSE), default TRUE
asm_diskstring ASM Diskstring (asm_diskstring='discoverystring', 'discoverystring1' ...)
verbose verbose execution, (verbose=TRUE|FALSE), default FALSE
keep_voting_files Voting file attribute, (keep_voting_files=TRUE|FALSE), default FALSE
利用renamedg来更改diskgroup的名称： grid@sundb01:/home/grid>renamedg phase=both dgname=oasmdgdata01 newdgname=datadg verbose=true NOTE: No asm libraries found in the system
Parsing parameters..
Parameters in effect:
Old DG name : OASMDGDATA01 New DG name : DATADG Phases : Phase 1 Phase 2 Discovery str : Clean : TRUE Raw only : TRUE renamedg operation: phase=both dgname=oasmdgdata01 newdgname=datadg verbose=true Executing phase 1 Discovering the group Performing discovery with string: Identified disk UFS:/dev/rhdisk2 with disk number:1 and timestamp (33002374 -296274944) Identified disk UFS:/dev/rhdisk1 with disk number:0 and timestamp (33002374 -296274944) Checking for hearbeat... Re-discovering the group Performing discovery with string: Identified disk UFS:/dev/rhdisk2 with disk number:1 and timestamp (33002374 -296274944) Identified disk UFS:/dev/rhdisk1 with disk number:0 and timestamp (33002374 -296274944) Checking if the diskgroup is mounted or used by
CSS Checking disk number:1 Checking disk number:0 Generating configuration file.. Completed phase 1 Executing phase 2 Looking for /dev/rhdisk2 Modifying the header Looking for /dev/rhdisk1 Modifying the header Completed phase 2 Terminating kgfd context 110285ba0 grid@sundb01:/home/grid> grid@sundb01:/home/grid>sqlplus / as sysasm
SQL*Plus: Release 11.2.0.3.0 Production on Fri Oct 10 12:33:31 2014
Copyright (c) 1982, 2011,
Oracle. All rights reserved.
Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production With the Real Application Clusters and Automatic Storage Management options
SQL> select name,state from v$asm_diskgroup;
NAME STATE ------------------------------ ----------- DATADG DISMOUNTED OCRDG MOUNTED
SQL> alter diskgroup datadg mount;
Diskgroup altered.
SQL> select name,state from v$asm_diskgroup;
NAME STATE ------------------------------ ----------- DATADG MOUNTED OCRDG MOUNTED
grid |